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Capstone Nov 6 - 12 25 questions
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Monday 6 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √360

    Answer: 6√10
  2. 2. Algebra

    Complete the square: 2x² + 8x + 4

    Answer: 2(x + 2)² - 4
  3. 3. Geometry

    Find area of triangle: a = 23cm, b = 23cm, angle = 75°. Give your answer to 2 decimal places

    Answer: 255.49cm²
  4. 4. Ratio

    a:b is 1:6 and b:c is 7:9. Find a:b:c in its simplest form.

    Answer: 7:42:54
  5. 5. Statistics

    Find the mean, median and range of: 59, 68, 44, 74, 73, 23, 78. Give your answer to 2 decimal places

    Answer: Mean = 59.86, Median = 68, Range = 55

Tuesday 7 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 3√96

    Answer: 12√6
  2. 2. Algebra

    Complete the square: x² - 11x + 2

    Answer: (x - 11⁄2)² - 113⁄4
  3. 3. Geometry

    Find area of triangle: a = 19cm, b = 19cm, angle = 77°. Give your answer to 2 decimal places

    Answer: 175.87cm²
  4. 4. Ratio

    a:b is 3:7 and b:c is 5:6. Find a:b:c in its simplest form.

    Answer: 15:35:42
  5. 5. Statistics

    Find the mean, median and range of: 57, 71, 78, 46, 51, 66, 14, 86. Give your answer to 2 decimal places

    Answer: Mean = 58.63, Median = 61.5, Range = 72

Wednesday 8 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: √245

    Answer: 7√5
  2. 2. Algebra

    Complete the square: x² + 11x + 8

    Answer: (x + 11⁄2)² - 89⁄4
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 28cm, angle = 58°. Give your answer to 2 decimal places

    Answer: 344.31cm²
  4. 4. Ratio

    a:b is 5:4 and b:c is 6:1. Find a:b:c in its simplest form.

    Answer: 15:12:2
  5. 5. Statistics

    Find the mean, median and range of: 23, 27, 19, 93, 98, 86, 43, 31

    Answer: Mean = 52.5, Median = 37, Range = 79

Thursday 9 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√99

    Answer: 15√11
  2. 2. Algebra

    Complete the square: x² - 3x + 7

    Answer: (x - 3⁄2)² + 19⁄4
  3. 3. Geometry

    Find area of triangle: a = 15cm, b = 27cm, angle = 53°. Give your answer to 2 decimal places

    Answer: 161.72cm²
  4. 4. Ratio

    a:b is 5:6 and b:c is 8:9. Find a:b:c in its simplest form.

    Answer: 20:24:27
  5. 5. Statistics

    Find the mean, median and range of: 56, 55, 38, 63, 46, 86, 57, 38. Give your answer to 2 decimal places

    Answer: Mean = 54.88, Median = 55.5, Range = 48

Friday 10 November 2017

Keystones #1 · Five questions · Open this day only

  1. 1. Number

    Simplify: 5√18

    Answer: 15√2
  2. 2. Algebra

    Complete the square: x² - 9x - 9

    Answer: (x - 9⁄2)² - 117⁄4
  3. 3. Geometry

    Find area of triangle: a = 29cm, b = 19cm, angle = 40°. Give your answer to 2 decimal places

    Answer: 177.09cm²
  4. 4. Ratio

    a:b is 7:6 and b:c is 7:6. Find a:b:c in its simplest form.

    Answer: 49:42:36
  5. 5. Statistics

    Find the mean, median and range of: 75, 81, 72, 64, 20, 58, 45, 68. Give your answer to 2 decimal places

    Answer: Mean = 60.38, Median = 66, Range = 61